WELL THOUGHT-OUT SOLUTION FROM GREEN ROOFING EXPERTS TECHNICAL BROCHURE DEAR READERS, Isn’t it incredible how the Green Roof business has taken off? We’ve gone from a niche market that few people took seriously to being the focus of widespread attention. The German government is taking an active role with the publication of its white paper entitled “Green Cities”. The construction industry is booming. Demand for green structures is higher than ever – and not only in Germany. Hardly anything is left to remind us of those days, almost 50 years ago, when we started out as a small team trying to get people interested in the concept of Green Roofs. The market has grown immensely – and so have we. These days, we green over 3.7 million square metres of roof a year in locations all around the world. It fills me with pride to know that we have become the market leader in our industry. Our technical brochure has experienced some big changes, too. It has been completely overhauled and expanded to give you an even better compen- dium of greening solutions. We hope that you find it useful for your own Green Roof projects. Of course, we’re always here for you if you need any further assistance. We look forward to your enquiries. Sincerely, Uwe Harzmann Managing Director ECONOMY ROOF LIGHTWEIGHT ROOF NATURE ROOF RETENTION ROOF MEANDER RETENTION ROOF FLOW CONTROL PITCHED ROOF GARDEN ROOF URBAN GARDENING LANDSCAPE ROOF PUBLIC ROOF SOLAR GREEN ROOF SYSTEM ADD-ONS TECHNICAL INFORMATION PRODUCTS Glossary COMPANY > ABOUT US YOUR TRUSTED PARTNER IN ROOF GREENING Optigrün is the leading roof and building greening specialist in Europe. With our solutions and products, we strive to make cities greener and more pleasant to live in while also helping to mitigate man’s contribution to climate change. In addition to our headquarters in Germany, we have locations in six other European countries, around 120 partner companies in the Optigrün network, plus close collaborations with numerous other landscaping businesses and construction material vendors. All this contributes to our success and continued growth. Every year, we green over 3.7 million square metres of roof and underground car park space. And that number keeps going up! We are committed to sustainability. That’s why our products and solutions not only contribute to a greener environment – they’re also made mostly of recycled or natural raw materials themselves. What’s more, Optigrün utilises a 100% ecological power supply, maintains carbon neutrality in the production of printed materials and operates a low carbon emission vehicle fleet. Optigrün stands for dedicated customer service and high standards of consulting. Architects, planners and builders alike benefit immensely from our expertise on various types of roof greening, rainwater management and fall protection. We’re also renowned for our ability to find solutions to unusual and particularly difficult challenges. With almost 50 years of experience, we design every item individually based on the latest technology available and in compliance with applicable standards and requirements. Optigrün delivers the product and systems solutions, which are then installed and maintained on site by specially trained landscaping companies. 2 Optigrün Technical Brochure ▴ Optigrün company headquarters in Krauchenwies-Göggingen COMPANY > SERVICE OUR TECHNICAL SUPPORT In addition to proven, quality products and solutions, Optigrün is also known for offering a wide range of high-level support services – services without which some projects would not be possible at all. Consulting Planning At Optigrün, every project starts with comprehensive In conjunction with the planning phase, we design multi-layered con sulting. Optigrün provides you with consulting services build-ups based on your greening goal. Depending on the in the following areas: project, we develop customised solutions and details for your property. - Extensive and intensive roof greening, including This also includes the provision of site-specific special plant selection and vegetation technology products. Other services included in the planning phase: - Traffic areas of building structures - Greening of pitched, flat and inverted roofs - Production of installation layout for solar panel stand and - Application of our products; including on site at major for fall protection systems construction sites - Individual planning of Planters and Edge Elements and - Optimal multi-layered build-ups; including with regard raised beds to weight optimisation or greening goal - Drainage system design with Optigrün products and - Optimising site procedures to speed up implementation hydraulic testing for proper drainage in compliance with DIN 1986-100 and German FLL Guideline for Green Roofs Service inquiries [email protected] - Planning of multi-layered build-ups and systems based on [email protected] (UK Only) long-term rainwater management simulations Service inquiries [email protected] [email protected] (UK Only) 4 Optigrün Technical Brochure COMPANY > SERVICE Calculations Documentation Every properly planned and executed project is founded on We also provide our customers with comprehensive comprehensive calculation. To pave the way for successful documentation. This includes: greening projects, Optigrün provides customers with a whole range of calculations. These can include: - Informational materials on our systems solutions and products and general industry information - Load calculations - Data sheets for all products - Wind loading calculations - Ongoing product testing and documentation - Production of simulation models for rainwater management for the products in accordance with applicable standards systems - Specification texts for system structures and individual - Static and dynamic overflow testing for our retention roofs products, including photos and technical data - Rainwater discharge calculation as basis for drainage - CAD drawings of standard details recommendation - BIM models for system structures and individual products - Testing of water balances and amounts of discharge into for the four conventional CAD programmes public drainage system - Assembly and installation instructions - Overflow testing in accordance with DIN 1986-100 - Letters of confirmation and statements - Calculation of live load on driveable rooftops and load - Supporting documents for certification purposes reduction calculation - Product Carbon Footprints (PCF) and CO2 balance of our - Thrust and traction calculations for pitched roofs, plus most frequently purchased products static testing for load reduction Service inquiries [email protected] Service inquiries [email protected] [email protected] (UK Only) [email protected] (UK Only) Optigrün Technical Brochure 5 COMPANY ADVANTAGES OF GREEN ROOFS Green Roofs and underground parking areas have positive effects that are not only visual but above all climatic, ecological, economic and relate to urban planning and wastewater technology. Here is an overview of the various advantages: VISUAL A more appealing environment Extreme locations With well-considered planning, a Green Roof matches with Roofs are often exposed to prolonged dry periods, high the architecture and complements it in an advantageous temperatures in summer, significant temperature fluctuations way. This creates magnificent roof landscapes that not only and wind movements. Particularly barren roof areas look very beautify and enhance your own building but also make your worn out after just a short time. Despite the extreme conditions, neighbours happy. Wouldn’t you prefer to look at fragrant it is possible to develop extensive Green Roofs with species-rich flower meadows full of daisies, thyme and lavender instead of vegetation here. Native plants, which usually grow slowly and bare roof waterproofing or lifeless tile, metal and gravel roofs? only require a small amount of care, are particularly suitable. 6 Optigrün Technical Brochure COMPANY ECOLOGY CLIMATE Ecological compensation area Improved heat and cold protection Green Roofs are measures to reduce interventions in terms Green Roofs have an insulating effect. They protect the of the impact compensation regulation as they provide interior of the building from heat in the middle of summer temporary or permanent habitats for plants and animals and from minus temperatures in winter. The temperatures in that need places to rest, feed and nest. the building under a Green Roof are around 3 – 4°C lower in summer than with a non-green and uninsulated roof. Improved working and living environment Green Roofs serve as an integral part of sustainable building to Improvement in the (micro)climate improve people’s working and living environments. Roof areas The evaporation and transpiration of the green plants that can be walked on, for example, offer additional living causes the retained rainwater to evaporate, which cools space, an area for playing and sports, and a meeting place. the surrounding air. Bonding of dust and pollutants in the air Fine dust and air pollutants are filtered out by the Green Roof and bonded in the substrate, broken down and absorbed by the plant. Plant growth reduces CO2 pollution by binding CO2 permanently. Optigrün Technical Brochure 7 COMPANY RESIDUAL WATER TECHNOLOGY Rainwater retention Extensive Green Roofs retain around 40 – 80% of the annual precipitation where it falls, namely on the roof. With intensive Green Roofs, it can even be 80 – 99%. This is a measure that contributes to creating a “sponge city”.